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-rw-r--r--src/egl/main/eglconfig.c25
1 files changed, 23 insertions, 2 deletions
diff --git a/src/egl/main/eglconfig.c b/src/egl/main/eglconfig.c
index 635ffee92b..1190f8cdd5 100644
--- a/src/egl/main/eglconfig.c
+++ b/src/egl/main/eglconfig.c
@@ -366,8 +366,11 @@ _eglValidateConfig(const _EGLConfig *conf, EGLBoolean for_matching)
if (_eglValidationTable[i].criterion == ATTRIB_CRITERION_SPECIAL)
valid = EGL_TRUE;
}
- if (!valid)
+ if (!valid) {
+ _eglLog(_EGL_DEBUG,
+ "attribute 0x%04x has an invalid value 0x%x", attr, val);
break;
+ }
}
/* any invalid attribute value should have been catched */
@@ -390,10 +393,18 @@ _eglValidateConfig(const _EGLConfig *conf, EGLBoolean for_matching)
valid = EGL_FALSE;
break;
}
+ if (!valid) {
+ _eglLog(_EGL_DEBUG, "conflicting color buffer type and channel sizes");
+ return EGL_FALSE;
+ }
val = GET_CONFIG_ATTRIB(conf, EGL_SAMPLE_BUFFERS);
if (!val && GET_CONFIG_ATTRIB(conf, EGL_SAMPLES))
valid = EGL_FALSE;
+ if (!valid) {
+ _eglLog(_EGL_DEBUG, "conflicting samples and sample buffers");
+ return EGL_FALSE;
+ }
val = GET_CONFIG_ATTRIB(conf, EGL_SURFACE_TYPE);
if (!(val & EGL_WINDOW_BIT)) {
@@ -406,6 +417,10 @@ _eglValidateConfig(const _EGLConfig *conf, EGLBoolean for_matching)
GET_CONFIG_ATTRIB(conf, EGL_BIND_TO_TEXTURE_RGBA))
valid = EGL_FALSE;
}
+ if (!valid) {
+ _eglLog(_EGL_DEBUG, "conflicting surface type and native visual/texture binding");
+ return EGL_FALSE;
+ }
return valid;
}
@@ -457,8 +472,14 @@ _eglMatchConfig(const _EGLConfig *conf, const _EGLConfig *criteria)
break;
}
- if (!matched)
+ if (!matched) {
+#ifdef DEBUG
+ _eglLog(_EGL_DEBUG,
+ "the value (0x%x) of attribute 0x%04x did not meet the criteria (0x%x)",
+ val, attr, cmp);
+#endif
break;
+ }
}
return matched;